First off, ive tried searching, but i can't find what im looking for so i started this

I have a 2" lift in my WT, and have a set of 31's sitting in the garage waiting for wheels to put them on.
Essentially, what needs to be cut & massaged and how much?
If im not mistaken, its just the bumper 'outriggers' (the bits of tube?) and then just attacking the seams with a hammer. Is that it or is there more? I'd really prefer to get it mostly sorted out before the tyres go on.
Thanks, Tom